[Firewall] CentOS 7 and boot problem

Hi,
I installed Centos 7.1 and the last Arno firewall iptables script. It
works great, but after reboot the firewall is not good loading.
I think he is to fast load the Arno firewall scripts and the interface
are not up or somethink like that.
Can anybody help me to automatic start the firewall on boot on CentOS 7?
Best regards,
Michel
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